124 EET. E. BOOG WATSON ON THE 



the impression proved deceptive, and hence the name. The 

 form of the spire is somewhat like Odostomia unidentata, Mont., 

 whilst the mouth resembles E. paivensis, Watson, from Madeira. 

 The form of the earlier whorls is faintly suggestive of the peculiar 

 columellar tip of the spire in Spirifer. E. lentiginosa, A. Ad., 

 from Japan, is of the same size, but has the whorls rounded, the 

 spire smaller and bent, and the apex much sharper. 



16. EuLTMA CHTDiEA, n. sp. (x"2<^aos, coarse.) 



St. 24. March 25, 1873. Lat. 18° 38' 30" N., long. 65° 5' 30" W. 

 St. Thomas, N. of Culebra Island, Danish W. Indies. 390 fms. 

 Coral-mud. 



Shell. — Smallish, translucent, strong, rather stumpy, with a 

 short broadish rounded base, a symmetrical spire, a small bluntish 

 rounded tip, subconvex whorls, an impressed suture, an oblique 

 pear-shaped mouth, and a thickened lip. Sculpture. The whole 

 surface is scored with faint regular microscopic longitudinal 

 streaks. Colour translucent white, not very brilliant on the sur- 

 face. Apex : the first two or three whorls are a little depressed, 

 the tip is flatly rounded, and the extreme tip hardly rises into 

 view. Spire conical, straight, with nearly symmetrical profiles. 

 Whorls 7|, of regular increase, the last alone is a little large ; 

 they are slightly convex ; the base is contracted, tumid, and 

 slightly concave. Suture distinct, being linearly impressed. 

 Mouth short and pear-shaped. Outer Up thickened by an external 

 varix, but with a fine, though blunt edge, which retreats above 

 and is very patulous in front ; in the middle of the solitary spe- 

 cimen it is broken. Inner lip thickened, concave, with a short 

 narrowed pillar, crossed in front by a Sissoina-like furrow. 

 H. 0-15. B. 0-06. Penultimate whorl, height 0-02. Tip of 

 apex 0-004. Mouth, height 0-06, breadth O'OS. 



This species slightly resembles _£J. paivensis, Watson, but is 

 narrower, with a finer, more conical spire, flater-sided whorls, 

 smaller apex and mouth. It has a superficial likeness to E.fallax ; 

 but has a coarser apex without the two papillary cylindrical first 

 whorls of that species, its spire-profiles are more convex, there 

 is no contraction of the body- whorl, and the mouth is larger. 



The following group of Eulimas have a coarser apex than those 

 which have gone before. 



